<template>
  <view>
    <view class="goods-list">
      <view v-for="(goods,i) in goodsList" :key="i" @click="gotoDetail(goods)">
        <my-goods :goods="goods"></my-goods>
      </view>
      
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        // 请求参数对象
        queryObj:{
          query:"",
          cid:"",
          pagenum:1,
          pagesize:10
        },
        goodsList:[],
        total:0,
        // 是否请求数据 节流阀
        // isloading:false
        
      };
    },
    onLoad(options) {
      // console.log(options);
      this.queryObj.query = options.query || '',
      this.queryObj.cid = options.cid || ''
      // console.log(this.queryObj);
      this.getGoodsList()
    },
    methods:{
      // 获取商品列表数据
      async getGoodsList(cb){
        // 打开节流阀
        // this.isloading =ture
       const {data:res}  =await uni.$http.get('/api/public/v1/goods/search',this.queryObj)
       // 关闭节流阀
       // this.isloading = false
       // 只要数据请求完毕，就立即按需调用cb回调函数
       cb && cb()
       if(res.meta.status !==200)return uni.$showMsg() 
       this.goodsList = [...this.goodsList,...res.message.goods]
       this.total = res.message.total
      },
      gotoDetail(goods){
        uni.navigateTo({
          url:'/subpkg/goods_details/goods_details?goods_id='+goods.goods_id
        })
      }
    },
    // 触底事件
    onReachBottom() {
      // 判断是否还有下一页数据
      if(this.queryObj.pagenum * this.queryObj.pagesize > this.total) return uni.$showMsg('数据加载完毕')
      // 让页码值自增 +1
      // if(this.isloading) return
      this.queryObj.pagenum +=1
      // 重新获取列表数据
      this.getGoodsList()
    },
    // 下拉刷新
    onPullDownRefresh() {
      // 1.重置关键数据
      this.queryObj.pagenum =1
      this.total =0
      this.isloading = false
      this.goodsList=[]
      // 2.重新发起请求
      this.getGoodsList(()=>uni.stopPullDownRefresh())
    }
  }
</script>

<style lang="scss">

</style>
